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author | Qt by Nokia <qt-info@nokia.com> | 2011-04-27 12:05:43 +0200 |
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committer | axis <qt-info@nokia.com> | 2011-04-27 12:05:43 +0200 |
commit | c4af45c2914381172e1bd7ee528481edaa2fff1a (patch) | |
tree | 01265e109316fda93845e1c96c5e566d870f51d0 /examples/script/qscript | |
download | qtscript-c4af45c2914381172e1bd7ee528481edaa2fff1a.tar.gz |
Initial import from the monolithic Qt.
This is the beginning of revision history for this module. If you
want to look at revision history older than this, please refer to the
Qt Git wiki for how to use Git history grafting. At the time of
writing, this wiki is located here:
http://qt.gitorious.org/qt/pages/GitIntroductionWithQt
If you have already performed the grafting and you don't see any
history beyond this commit, try running "git log" with the "--follow"
argument.
Branched from the monolithic repo, Qt master branch, at commit
896db169ea224deb96c59ce8af800d019de63f12
Diffstat (limited to 'examples/script/qscript')
-rw-r--r-- | examples/script/qscript/main.cpp | 220 | ||||
-rw-r--r-- | examples/script/qscript/qscript.pro | 16 |
2 files changed, 236 insertions, 0 deletions
diff --git a/examples/script/qscript/main.cpp b/examples/script/qscript/main.cpp new file mode 100644 index 0000000..a8d93d0 --- /dev/null +++ b/examples/script/qscript/main.cpp @@ -0,0 +1,220 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor +** the names of its contributors may be used to endorse or promote +** products derived from this software without specific prior written +** permission. +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** $QT_END_LICENSE$ +** +****************************************************************************/ + + +#include <qscriptengine.h> + +#include <QtCore/QFile> +#include <QtCore/QTextStream> +#include <QtCore/QStringList> +#include <QtGui/QApplication> + +#include <stdlib.h> + +#include "bytearrayclass.h" + +static bool wantsToQuit; + +static QScriptValue qtscript_quit(QScriptContext *ctx, QScriptEngine *eng) +{ + Q_UNUSED(ctx); + wantsToQuit = true; + return eng->undefinedValue(); +} + +static void interactive(QScriptEngine *eng) +{ + QScriptValue global = eng->globalObject(); + QScriptValue quitFunction = eng->newFunction(qtscript_quit); + if (!global.property(QLatin1String("exit")).isValid()) + global.setProperty(QLatin1String("exit"), quitFunction); + if (!global.property(QLatin1String("quit")).isValid()) + global.setProperty(QLatin1String("quit"), quitFunction); + wantsToQuit = false; + + QTextStream qin(stdin, QFile::ReadOnly); + + const char *qscript_prompt = "qs> "; + const char *dot_prompt = ".... "; + const char *prompt = qscript_prompt; + + QString code; + + forever { + QString line; + + printf("%s", prompt); + fflush(stdout); + + line = qin.readLine(); + if (line.isNull()) + break; + + code += line; + code += QLatin1Char('\n'); + + if (line.trimmed().isEmpty()) { + continue; + + } else if (! eng->canEvaluate(code)) { + prompt = dot_prompt; + + } else { + QScriptValue result = eng->evaluate(code, QLatin1String("typein")); + + code.clear(); + prompt = qscript_prompt; + + if (! result.isUndefined()) + fprintf(stderr, "%s\n", qPrintable(result.toString())); + + if (wantsToQuit) + break; + } + } +} + +static QScriptValue importExtension(QScriptContext *context, QScriptEngine *engine) +{ + return engine->importExtension(context->argument(0).toString()); +} + +static QScriptValue loadScripts(QScriptContext *context, QScriptEngine *engine) +{ + for (int i = 0; i < context->argumentCount(); ++i) { + QString fileName = context->argument(0).toString(); + QFile file(fileName); + if (!file.open(QIODevice::ReadOnly)) + return context->throwError(QString::fromLatin1("could not open %0 for reading").arg(fileName)); + QTextStream ts(&file); + QString contents = ts.readAll(); + file.close(); + QScriptContext *pc = context->parentContext(); + context->setActivationObject(pc->activationObject()); + context->setThisObject(pc->thisObject()); + QScriptValue ret = engine->evaluate(contents); + if (engine->hasUncaughtException()) + return ret; + } + return engine->undefinedValue(); +} + +int main(int argc, char *argv[]) +{ + QApplication *app; + if (argc >= 2 && !qstrcmp(argv[1], "-tty")) { + ++argv; + --argc; + app = new QApplication(argc, argv, QApplication::Tty); + } else { + app = new QApplication(argc, argv); + } + + QScriptEngine *eng = new QScriptEngine(); + + QScriptValue globalObject = eng->globalObject(); + + globalObject.setProperty("load", eng->newFunction(loadScripts, /*length=*/1)); + + { + if (!globalObject.property("qt").isObject()) + globalObject.setProperty("qt", eng->newObject()); + QScriptValue qscript = eng->newObject(); + qscript.setProperty("importExtension", eng->newFunction(importExtension)); + globalObject.property("qt").setProperty("script", qscript); + } + + ByteArrayClass *byteArrayClass = new ByteArrayClass(eng); + globalObject.setProperty("ByteArray", byteArrayClass->constructor()); + + if (! *++argv) { + interactive(eng); + return EXIT_SUCCESS; + } + + while (const char *arg = *argv++) { + QString fn = QString::fromLocal8Bit(arg); + + if (fn == QLatin1String("-i")) { + interactive(eng); + break; + } + + QString contents; + int lineNumber = 1; + + if (fn == QLatin1String("-")) { + QTextStream stream(stdin, QFile::ReadOnly); + contents = stream.readAll(); + } + + else { + QFile file(fn); + + if (file.open(QFile::ReadOnly)) { + QTextStream stream(&file); + contents = stream.readAll(); + file.close(); + + // strip off #!/usr/bin/env qscript line + if (contents.startsWith("#!")) { + contents.remove(0, contents.indexOf("\n")); + ++lineNumber; + } + } + } + + if (contents.isEmpty()) + continue; + + QScriptValue r = eng->evaluate(contents, fn, lineNumber); + if (eng->hasUncaughtException()) { + QStringList backtrace = eng->uncaughtExceptionBacktrace(); + fprintf (stderr, " %s\n%s\n\n", qPrintable(r.toString()), + qPrintable(backtrace.join("\n"))); + return EXIT_FAILURE; + } + } + + delete eng; + delete app; + + return EXIT_SUCCESS; +} diff --git a/examples/script/qscript/qscript.pro b/examples/script/qscript/qscript.pro new file mode 100644 index 0000000..59577a8 --- /dev/null +++ b/examples/script/qscript/qscript.pro @@ -0,0 +1,16 @@ + +QT += script +win32: CONFIG += console +mac:CONFIG -= app_bundle + +SOURCES += main.cpp + +include(../customclass/bytearrayclass.pri) + +# install +target.path = $$[QT_INSTALL_EXAMPLES]/qtscript/script/qscript +sources.files = $$RESOURCES $$FORMS main.cpp qscript.pro +sources.path = $$[QT_INSTALL_EXAMPLES]/qtscript/script/qscript +INSTALLS += target sources + +symbian: include($$QT_SOURCE_TREE/examples/symbianpkgrules.pri) |